No, not if you want to obtain the legal protection provided by a patent or utility model.Only new inventions can be protected, i.e. those that have not been disclosed to the public either in Spain or abroad, whether in writing, verbally or by any other means. In other words, in order for an invention to be eligible for protection, in cannot be included in what is known as the "State of the Art".
Exceptions are made to the above in some cases, such as the presentation of inventions in officially recognised exhibitions, in which case, applicants have six months from the date when the invention was displayed in which to prepare an application that must be accompanied by the relevant official certificate.